Harp: A Distributed Query System for Legacy Public Libraries and Structured Databases

摘要

The main purpose of a digital library is to facilitate users easy access to enormous amount of globally networked information. Typically, this information includes preexisting public library catalog data, digitized document collections, and other databases. In this article, we describe the distributed query system of a digital library prototype system known as HARP. In the HARP project, we have designed and implemented a distributed query processor and its query Front-end to support integrated queries to preexisting public library catalogs and structured Databases.